Pre-Algebra Examples

$\frac{4}{9} \cdot 81$

Step 1

Cancel the common factor of $9$ .

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Step 1.1

Factor $9$ out of $81$ .

$\frac{4}{9} \cdot (9 (9))$

Step 1.2

Cancel the common factor.

$\frac{4}{9} \cdot (9 \cdot 9)$

Step 1.3

Rewrite the expression.

$4 \cdot 9$

$4 \cdot 9$

Step 2

Multiply $4$ by $9$ .

$36$

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$